| Background: As we get older, the elderly will undergo degenerative processes that affect the quality of life of the elderly. The elderly often experience impaired cognitive function . Impaired cognitive function is influenced by age and education level . Some studies suggested the prevalence of olfactory function disorders associated with an increased incidence of impaired cognitive function . However, in Indonesia, no one has studied specifically related to the relationship olfactory function with cognitive function . Methods: The research method was a cross-sectional analytic study, conducted on 183 subjects in the Kelurahan Cideng, Central Jakarta used familiar aroma for elderly in Jakarta to measure olfactory function and Mini Mental State Examination to measure cognitive function. Results: Of the 183 subjects who fulfilled inculsion criteria, it was found that there was a significant correlation between age, education lebel, and olfactory function on cognitive function with the value of ? and OR respectively 0,022;2,484, 0,001;3,463, and 0,000;6,766. Elderly with impaired olfactory function had a 6,7 times greater risk of impaired cognitive function. Conclusion: There was an association between the decrease in olfactory function, age and education level of the decline of cognitive function in elderly women and men. Elderly with impaired olfactory function had a 7 times greater risk of impaired cognitive function. |